 
   (checkpoint [this])
 
+  (recover! [this replica-version checkpoint]
+    this)
+
   (synced? [this epoch]
     true)
 


  (checkpoint [this])

  (checkpointed! [this epoch]
    true)


    true)

  (checkpoint [this])

  (recover! [this replica-version checkpoint]
    this)

  (checkpointed! [this epoch]
    true)
